Phoenicochroite

Formula: Pb2(CrO4)O

Origin of name: from Greek for deep red and colour

 

Crystal system: monoclinic

Crystal class: 2/m

Twinning: 

Unit cell: 

 

Colour: red

Diaphaneity: transparent to translucent

Luster: resinous or adamantine

Habit: large polycrystalline masses, anhedral cleavable masses

Hardness: 2.5

Specific gravity: 7.01

Cleavage: 4; {-201} good, {001}, {010} and {011} fair

Tenacity: 

Streak: yellowish orange

 

Synonyms/varieties:

 

Comments: 

 

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